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Finless Porpoise

The Finless Porpoise almost completely lacks
a dorsal fin. Instead there is a low ridge covered
in thick denticulated skin. This demonstrates that
the body shape that has evolved to be the optimum for
sharks, dolphins and porpoises is not the only possible
body shape for a marine animal.
Adult Finless Porpoises are a uniform light grey colour.
Newborn calves are mostly black with grey around the dorsal
ridge area, becoming fully grey after 4–6 months.

Facts

Scientific Name:

Neophocaena phocaenoides

Length:

1.55 m / 5 ft

Weight:

30–45 kg / 65–100 lb

Age:

up to 15 years

Total Population:

2328 individuals

Map Range:

A unique fresh water population is found in the Yangtze River.

Captivity

Current Finless Porpoises in Captivity

Amakusa Aquarium.
Minamichita Beach Land Aquarium .
Shimonoseki Municipal Aquarium .
Baiji Aquarium.
Osaka Kaikyukan Aquarium .
Marine World Uminonakamichi
Toba Aquarium.
Port of Nagoya Aquarium
Institute of Hydrobiology China

Past Finless Porpoises in Captivity:

Miyajima Aquarium.
Hashimoto Aquarium.
Notojima.